Programming and Operating Manual (Turning)
158 01/2017
Deep-hole drilling with chip breakage (VARI=0):
● Approaching to a position of safety distance relative to the reference plane with G0
● Traversing to the first drilling depth with G1, the feedrate for which is derived from the feedrate defined with the program
call which is subject to parameter FRF (feedrate factor)
● Dwell time at final drilling depth (parameter DTB)
● Retraction by 1 mm from the current drilling depth with G1 and the feedrate programmed in the calling program (for chip
breaking)
● Traversing to the next drilling depth with G1 and the programmed feedrate (sequence of motions is continued until the
final drilling depth is reached)
● Retracting to the retraction plane with G0
Explanation of the parameters
For an explanation of the parameters RTP, RFP, SDIS, DP, and DPR, see Section "Drilling, centering - CYCLE81
(Page 152)".
Interrelation of the parameters DP (or DPR), FDEP (or FDPR) and DAM
The intermediate drilling depth are calculated in the cycle on the basis of final drilling depth, first drilling depth and amount of
degression as follows:
● In the first step, the depth parameterized with the first drilling depth is traversed as long as it does not exceed the total
drilling depth.
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